Vegans turn up to a steakhouse and make a nuisance of themselves.
Omnivores previously enjoying their meals realise the errors of their ways.
One of those things happened.
As others have said this isn't the way to go about enacting change.
I'm trying to cut down on eating meat myself, mostly for budgetary reasons and because my other half is vegetarian, but if I was sitting in that restaurant I'd certainly not be warming up to their cause.